US2669415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually operated shutoff valve
Assignee: Airco Inc
•
Filing: 1950-01-04
•
Granted: 1954-02-16
•
Expires: 1970-01-04
Abstract
No abstract record available.
Inventors
- 👤 Gilroy John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:08
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/22; F16K3/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US263091A
Cited
US854134A
Cited
US995247A
Cited
US1016306A
Cited
GB191509164A
Cited
US1886159A
Cited
US1779740A
Cited
US2126594A
Cited
US2217835A
Cited
US2360733A
Cited
US2417242A
Cited
US2431437A
Cited
CH272665A
Cited
US2525928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |